A flexible tub is formed as the throat pushes out of the mouth. This enables the
flatworm to search for food. When the flatworm is not looking for food, the throat
is pulled back inside the mouth. Food consists of decaying bits of plant or anima
l material. It will also eat insect larvae or other small water animals if they are small

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Flatworm after Eating
enough to swallow and slow enough to catch. These animals generally rely on continuous feeding.
Flatworms are mostly carnivorous and prey on invertebrates small enough to be captured. They also scavenge on the dead bodies of animals that sink to the bottom.